Rik proposes 0.9 mm Phosphor Bronze wire for the coupling hook - I guess 21 SWG (0.032” / 0.813mm) is close enough for "Govt. Work" as they say?
I have found a source for 21 SWG in that well known auction site at about £4.50 for 2 ft. I guess this will do the job?
![:dontknow: :dontknow:](./images/smilies/dontknow.gif)
Any suggestions?
Best
![:salute: :salute:](./images/smilies/icon_salut.gif)